Sync web-platform-tests PR 23542 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/23542
Details from upstream follow.

Frédéric Wang <fwang@igalia.com> wrote:

MathML scriptlevel: Update test for attribute mapping.

CI Results

Ran 12 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 72 tests

Status Summary

Firefox

OK : 1
PASS: 30[GitHub] 101[Gecko-android-em-7.0-x86_64-debug-geckoview, Gecko-android-em-7.0-x86_64-opt-geckoview, Gecko-linux1804-64-debug, Gecko-linux1804-64-opt, Gecko-linux1804-64-qr-debug, Gecko-linux1804-64-qr-opt, Gecko-windows10-64-debug, Gecko-windows10-64-opt, Gecko-windows10-64-qr-debug, Gecko-windows10-64-qr-opt, Gecko-windows7-32-debug, Gecko-windows7-32-opt]
FAIL: 66

Chrome

OK : 1
PASS: 32
FAIL: 64

Safari

OK : 1
FAIL: 96

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Details

New Tests That Don't Pass

/mathml/relations/css-styling/attribute-mapping-002.html
displaystyle on the mphantom element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the mspace element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the mtd element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the munderover element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the merror element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the maction element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the munderover element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the msup element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the msub element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the munder element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the mrow element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the mo element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the ms element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the mtr element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the mtr element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the annotation element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the mtd element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the mo element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the maction element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the mpadded element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the msqrt element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the mstyle element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the mprescripts element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the menclose element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the merror element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the menclose element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the mover element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the annotation-xml element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the mphantom element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the mi element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the mtext element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the msubsup element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the semantics element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the munder element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the msub element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the mtable element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the mfrac element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the none element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the mmultiscripts element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the mn element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the mi element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the semantics element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the msup element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the mpadded element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the math element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the mmultiscripts element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the mstyle element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the mtext element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
scriptlevel on the merror element is mapped to font-size: scriptlevel(...): FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the mfrac element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the msubsup element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the mrow element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the mtable element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the none element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the mroot element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the math element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
scriptlevel on the math element is mapped to font-size: scriptlevel(...): FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the mover element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the mspace element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
mathvariant on the msqrt element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the mroot element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the mprescripts element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the mn element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)
displaystyle on the annotation-xml element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
displaystyle on the annotation element is mapped to CSS math-style: FAIL (Chrome: PASS, Safari: FAIL)
mathvariant on the ms element is mapped to CSS text-transform: FAIL (Chrome: FAIL, Safari: FAIL)

https://hg.mozilla.org/mozilla-central/rev/06513a546482
https://hg.mozilla.org/mozilla-central/rev/45d350c56e73